Cutting chain



sam.V 25, 1923.v

2 Sheets-Sheet 2 E. C. MORGAN CUTTING CHAIN Filed Dec. 12, 1918 Palmes sepezs; 1923; f

J @CUTTING CHAIN.

Y of the includingma-jportiii MORGAN, socketiri sectiontakenon line;7,'l,; Iig. .1.

milar n)parte Be it known that .Vl-,f vEDMUND C.VY

aY citizen of'tlieUnited (States,- residingfat Y Similar niuneralgfrerergtos .Y, NewYorkcityin th'ecountybf New Ybrl; througheutltlieseveral'fvies.; .Y Y i; and State ofrNewYorhhave inventedfanew K Referring teFigsfLQ and 8,."Zindicates and useful lmprfoement in @uiting Gliains, .the central linlr'si-'/tliief` che. of WhiClitheOllOiingisafspeciiicaticn. als()the?cutterfsupperting'links.V A'number My"inr-.enticnV relates te `the irnprevenient of these links are connected.tgetlier.tevjoifiiif` in cutting chains intended Vforuse fin mai-Y aceiipletejcbrainfbymeanslb tliesidelinlais l0 chines-forcutting Qeal-.and'kotbe'r inaterialsgf Sv-Sywhieli have lrlieeting'fbessesformed on in, which; are. -Gof and tbe objects otlie'imprcvement a're,.iirst,' there' te inte `lileles `mm3-.e ,in 'flelbttingi tO-prcvide a euttingjcliaiin Wbicli,theV eut- A. linlrf?. Tliese side'linlsareseeuredytegetherf 'i tino' elements can beuiiic'k'lf removed when. .means oi'suitable l'riif'ets 9.' ,-Tli'ese Aside the rhave'becoineYdulled and Shar enedones1 lln'ksare jalso'adapted to v-fit into GuidesA of 15 uickl insertedintheir lacesrsecondito Well-known:Construction the VVA`bein'indi-xY (17.57.- .prwwrrm.- .',L Y... i. 1f.. ..n v

previdefcutting -bits'nhichcan b e formed ated by vthe `delted.1li-nes'shawn, in r ig. 2*"770 f from astraight bar ei'l Steeb' sharpened andl inclosing the sideiliiilrs. The particular side"- re-sbarpened Without'pheatig and forging; links. sliewnarenot essential fer; the Opera-' third, t0 piijvicleQirieanst whereby vtbe/bits tien Oif'jmy inventin Yas otherEwell-kno; n` 20 canY be Ysharpened several times .without re-YV olrmso Side'linlis maybeusedwith equally moyal from the. soeletfeurtmfto prcidej as goed results;*Projectingupwardly from. 75

meansfoij.adjustingtbel'bitsY-at eachfsliarpthejlinlr7,.andpreferably"ixearzardlthere-"QYl ening so` as to rnaintainitheir cutting edges ojwistlieiT "head 'prejeetin l0; Tbisjfl'ff if: in a. predeterminedposition With'respec t head Yis niade tapering, as. shown, 'in .ftlie 25 to the chain, and tog's'eurel-yv astenthern Vin directin ilgwliicli Vthefcliain,traifels' Whif" eachof said adjusted'pes itio'ns;v fifth, tdpr cutting. l TlieT head 10 isjpreferably'finade. 80 n vide a cutting chain in vliichlthe cutter-supi integral 'witbftlie links'v V7. .Y The upper part pcrting linkSY`Y-orm supportsjiorbne anetliefr` of each'linl'; as Ysliownisiniade iii the ferm'. Y While cutting; and sixth,v to *providegaicuill rof a rib? l1 'extendingferwardly and;rear

ting cliaiiiin whichtlienten'dency of the cut! YWaidly.Offfthe"niainybedy'of the linie-,Thel i ters taf-gouge inte` Vthe coal; isreduced.,forwardlyvprojecting'Yporticnis' 'so.'made'.15435V i 4 Iattain these- :ob'jectslby the: ini/prfete fortel a-slelfat the outer end,A and theY ments illustrated. in the aceompanyingdray- Y rearwardly projecting portionf'o'f 'the' ribisj 'V YingLin Which'- j n Y f l, made'so aste-rest ori-the sheln ofys'in'lilar'.' i Figure vl'is a sideele'yation or" ai portienj link.;A YEaelilink 7 0f 'the chainis 'adapted1Y of the cutting chain' including one Vofthe to carryiafbitsecketfeuchas12.' VThis bit 90 i bit sockets shown partly-broken away and "-soclretflZflias a.deetailed"Opening formed f in cross secticn takenv en line` l-l flfig. Vin the;flewfei portieri of each ft'zfit tbe TYY Y 2; Fig. 2 is; a front end Viewl of Fig.Y l head ,lOQJprQjectionic theY linlrlj and is; f. 4.0 partly in cross sectionv taken 'on' line 2 2 .taperedtorcerresipond Witlithetaper of the-.Y

of Fig'. l, looking in the` directicniindieated 'T head.V 'Byinean's e-Ytfliis 'taper connection#95H Y Y by tl1e '"rr ws;Y Fig.` 3 .is a top planviefylv the sockets 'caribe quicklyinserted fin tlielf'- of the portion'of the chain shown'in Fig.. chain by hand,andgktbepressure causedffbym .Y l'partlyin'cross section takenon-'tlieline 3f '3, the?cutting.action'willlreeputliemtight. V1 Figs."1and .2,l0cle;ing in 'tbe direction in? V'the vsaine' tim'etlieyfcaniquiclrly be detai'clied@ dicated by :the-arrows; Figs. fl, 5, 6, and 7.: lby striking,tlienisliarpblows with a'fliainireri100v show a 'modifi dlfform-ofjconstiuetiezi con- 0,11 the back Seiasjteleosentliem om theirv taining rbyYinventiQn-Y Whicliflig.' 411s-^tap'eriseats`, Y,fEacli O' bitfsbcke`tsf-12 v'isf ,7 1asidezelevatienof-aprtionloffthecuttingrarrangedto cairygonebrniorelbits A1 3 chainjpartly breken laway Aonrtlie line i, slioivii,V three bits fare fc'arried. "Tliese bitsff 4 |Fig.,5.gv Fig. `is aneiidgelevatin lofrFlig. arepreferablyinade ofYsteelfsguarefin'cross 105 i Litalien on line, 55 Fig. 4.. Figjj isa.OP.fseetionan'dftlie Ciritting edgi-:f' formed; 'byfff plan View oYFig; fin seetionlakenlon; lineVV grinding ontlieupperV surface. VTKbe-prperr 616, Fig. ig. 7'isan end tfilaW-cd One-f aineuntf 'drawforfcutting isfc` l forwardly'.

forming the socket so as to incline the bits Thej` bits are secured in the socketsby means of the set screws le; ifi/"hen the bits are sharpened a certain portion will*` be `ground away, as indicated'by the dotted on aline ruiming at right angles with the length of the chain from the centre of the joint at Athe rear oit the ilink. l means, it the pressure of the cutting, forces the point ofthe bitback, it will 'recede fromV ,Y Vthe coal instead ofgou'ginginto it, as it would it' the point were further forward por" thelink?. j l Y j Figs. 4, 5, 6V and 7 show of construction of my invention including the preferred form of bit holding and adjusting means. Referring to these views 16 indicates the central links of Vthe chain, which are also the cutter supporting links.

A number of these links are connected to- Y getlier to yform a complete cliain by L means ot' the side links 17, 17,7which haveV meeting bosses formed on them to tit into holes made Y in the cutting linksl. These side links are secured togetherV by means of rivets 18. These side linksV are otrwell known constructionnow 'most universally used Vin Vcuttingf'chains. Tliey have guiding lugs which tit-in guides about as indicated rby the dotted lines in Fig. 5. Cast integrallylwith the link l6-is a hook 19.; also extending rear# I' wardlyja projection'20 having` a' hook shaped end 21'.' The two hook Vshaped 'projections '19 y and 21 form Ya'j'awV into which the bit socket Y22 is adapted to be insertedandfirmly secured'. l by means of the forwardly projecting -por tion 23 which engagesl with thehook 19 and A the'notch 24HatV the rear of the socket'wliich engages withvtherlatcli 25'isecured in the hook shaped portion 21. This latch is made squarev tol form a sliding lit in the square hole 26, and Vis provided with a screw 27 to limit its 'outward movement. A spring ,28,

is provided to pressV the latch to the furl Y tliest limitV allowed 'by the screwl withcon'- Y siderablepressure. Als will be'noted, the end Y ofthe latchis made with'ra sliglitrtaper in' one directiom and a steep4V taper inthe otherl direction. They object 'of this is toV permit the socket l22 tobe easily insei'tedin the link j -lG-v'but to require considerable force to re-v move-Vit. I have provided a lug 29 oiivthe socket 22 soV that arlever as indicated by the dotted lines may be employed'to effect the detachment.

a' modified form' The bits BOare adjustablyI secured in the `sockets and.arrangedvto*bel irmly heldin any of the several positions yby clampingv screws 3l and endy supporting and adjusting screws-32.V The bits BOare made with square corners to lit in toisockets'liaving square corners so as to resist twisting strains. T carry the square corners downtlirough the screw threads for the adjusting screw 32 as indij i cated V'clealrly'in Figf?. By this means a long shank bit can be used sov as to provide for sharpening Ya ynumbero times by grindi ing andthe cuttingfedgealways kept ata predetermined position with respectto the;V f

' f so body of the cuttingchain.

lnFigfe I have shown a bitsocket a porf tion of which is screw threadedto receive thethrea'ded nut v32provided with asquaredy inner recess tor receiving a turning .tool tot adjust the vposition "of `thefbity 30 thereby forming an Yadjustable support for the" bit lengthwise of the latter.'Y It will Ythus be seen that the combination of thebitV structure withy the'chainrlinks includes two means of' securing the bit in.r place; one of these means ing the bitron the side Aand theother coni-H prises the hollow. set screw `32ffor backing up the bit att-he end. Y This arrangement per#V mitstlie use cfa straightbit as' shown in Fig; 4 which may be sharpened'by grinding comprises the hollow set screw'l for bind- I' A without removal from the bitsocket and adjusted outwardly loosening the nutfl' turning vthe nut 32 vandagainYtiglitei'iing the'. nut 31. r Such adjustment iis desirable to take' Vup tliefpart removed Vbyy wearv and by sharp` ening andena'bles'thepointfofzthebit tobef maintained at anvoriginally predetermined n distance from thecenter line of the pathcfj l travel of the cutter chainQfV `*Byniy construction it'will'be seen thattlie' bit sockets ycan be easily inserted inrthelcliai'n ,andA securely held andrat the same time they can be' quickly detached. Y

Having now describ d V my claim- Y u I l. ln a chain cutter :tormining machines, tliecombiiiation with a cutter link, ot a bit socket, a bit in said socket, means feriadinvention," I

justably holding said bitin said socket, and 1 securing mechanismindependent'of the bit `holding means between saidfcutter link andv said bit socket to permit the latter to be vattached to 'saidcliain or detached'theretromA i by a s -inglesliding'movement'of said Abit,y socket iii a direction substantially `parallel with tlie vpath o"f travel ofthe chain. 5 v

iio

2.. A; cutter chain comprising I link', i'

bit holderhfaving abit socket therein, coni nections beftrzeen4 said: bit` {holder and "saidYV link f to detachablyjholdfsaid bit: holder se-v curelyrattached to"said link'by wedgingj action but permitting quick detachment of, Y

said bit holder from sa'idlink, and a bitin-w dependently andadjustably mountedinsadflsi '1,468,866 f i 3f,

socket to have a cutting path ot `travel ata predetermined distance fromfthe path ot travel of lsaidlink.

3,111 a chain'cutterfor'mining machines, j

the combination VWith-La seiies Vof central cut-ter supportinglinks each having a ton' 'porting links being so spaced Vby said side links thatfthe lsaid overlapping-Will be secured, bitesoc'kets, and means forV supporting said hit sockets on said cutter. links yloi-jfiV direction orn cuttingjtiavel ofthe chain out# ter whereby the tendencyl oiftlie cutting action to tilt thelcutt'erlinks; will 'be resisted by the saidl'overlapping ot' .saidprojections.

' l. A, chain .cutter-comprising aciitter link having spaced-apart transverse pivotal 'axes for connection to adjacent Yconnecting links, a rearward extension: relative to the direc-.

tion ot'. cutting path of travel, a bitholder,

' means on said bit holder and said vrearward t'lie under side of a.. rearwardly extending projection of the next adjacent forward cut#y ter supporting link,`additionalV links for connecting said cutter vsupporting linkstothe bit has vbeen resharpened.

getherto orm` a cutting chain, and bit holders carried byV said ing projection. y

6. chain cutter :for mining machines, comprising a cutter link, Va seat thereon, a bit liolder,means onsaid bit holder adapting the latterto be` slipped on said seat for rigid connection to said link by back presL sure due to the ciittingoperation, a bit, and

means operating independently of thevmean'sV for securing the bitholder to the linkv for adjiistably holding said bit to occupy a predetermined cutting path of travel, Where-A by adjustment oitsaid Ybit 'in said-'holder maybe made after tlie'holderfhas Vbeen released manually from said `seat and after A 7 l chain cutterAv inor mining machines, a Cutter` link, a friction seat'tli'ereoma detachable bit holder, means operating lindependently of the meanstor: securing 'the bit holderto tlie link for adjnstably securing said bitv in said holder While'the'latter is detached, and A means, Y 0n Asaid holder VYsecuringthe bit vholder lto vthe link-'for ade` fi',

. lWard projections. extension of said cutter-:link for detachablyV chain. cutter comprising a series otrearvvardly eteiid- Vprising acutter link, a.' bit'holder, detach# of said' bit holder toY and `from said' k,chain adapting'tlie-latter and bitfltobe slippedv f manually Uon said seat tor" rigid connection to said link. x i y 8.' ll. chain cutter for mining machines, a cutterl link, a seat .tliereon','aebit` Aiolder, means on said bit liolderiieior Wedging-the` latter ontosa'idseatv and'permitting-manual. release of said bithclder, a'bitfandf means 'j operating independentlvv lof the means' for justahly securing-said bit. tdsaid-holder j when the latter Ais Vdetaclied*fromsaidlink.' Y QA chain cutter.comprisingafcutter link having` spaced-apart transverse pivotal axes .c

for Vvconnection to adjacentconnecting liiiksf j a VVprojection. editending rearWardly'A-roin said cutter link-relativetothe direct-ionv of .cutting-path of travel, a bit holder, .means on said bit holderV and saidieariv rdf py of jectionvfor detachably holding said bit holder onv said' cutter, link, ai' projection een. tending,forwardly from 'said' 'cutteijlink' VVjin `position vto extend under andy engage-f the rearward extension of the nextladjacent forward cutter-link, and pairs vfot side links connecting the cutter links and mountedindependentlv o'saidorivard and rear- 10. A chain cutter comprising.;V aseries of een links for connecting saidcuttersupporting l links together toltorm a vcutting lehain,-a f projectionextending forwardly from each of the cutter: supporting links, projection extending rearwardly from each of the cutter links te vengage Vand overlapv vt-he for- Ward end ofthe oiivardextending, projec-V tion kindependently of vsaid additional links, and bit holderscarriedby theirearwardly extending projections, x 3

ll. A chainjcutter'for coal mining maV chines' comp-rising a ,cutter-carrying link having a T-shapedtapered head,y Ya *bit holder having jaws With a tapered socket adapted to vfit on said tapered T-head,a bit adapted to be carried bysaid'bit holder, l and means for adjiistably securing said bit in said bit holder. 1

l2. A'mining machine. chain `cutter coniable connections Ybetween said Vbit holdeif and'said link and comprising lateralspacedapart interconnecting Wedgingsiirfaces ltor removably securing said bitholder to'said link, Yandineansloii saidbitz holder for securing a'xbitgthereoninV adjusted position. v '13'. Al'mining machine" chain cutter coin-1 prising a cutter 'linkfa fbit holder com-.J

prising a socket inclinedYY forward in the 125 direction of tra-vel ofthe chain cutter, means e, on said bit holderifor securing a. bit thereto ,in adjusted position, and interlocking coiif i' -nections .betweenysaid bit holder and said link for quick attachment and detachmentw tral cuttersupporting links, additional-795V lian ff- While said blt 'remains 'in adjusted position relative to said bit holder.

14:. A chain cutter. comprising a cutter link, a bit holder,` an interlocking detachable connection bet-Ween said link and said bit holder, and means independent of sa-id interlocking,r connection for securing a bit iii said bit holder separately from euch conin place andY to permit 'such Vbit holder to nec-tion to permitthe bit holder to Vberemoved fromY said link with the oit leeured be replaced With a rie-sharpened bit already in adjusted position relative to said bit helder.

l5. n a Chain Cutter tor mining machines, the combination with a cutter link, of a detachable bit holder, a bit, means 'for securing said bit invadjusted position in' Said holder Whether connected or disconnected with said link, andl interlocking mechanism between said bit holder and said Cutter link for permitting' the attaching or det-aching of Saidbit holder to and from meshes ing the latter toi-be plaeedmanually on a ei adjust d posit-ion' iii said bit holder.V Y

l? 'fehaineutter for mining machines comprising Cutter; link, a s'eat'onrsaid out` means for adJustablyV te" link, a 1oit holder, holding a bit in Said bit holder to occupy a predetermined cutting' path of travel, and

means on said bit holder adapting the4 latter to be Yslipped onto said seat for rigid connection to said link by backripressure due Y.'

to the "cutting operation Vwhereby thefbit holder may-'be manually released from said seat `for reeharpening ot lsaid. bitand the cer link While said bit remains secured in y readjustmeiitfthereotbefore being manually replaced on said'seat after said;biblias-been ssi-id bit holder in adjgust'ed posi-v secured to tion. f

18. A eliaiii cutter for mining Amachines comprising a Vcutter link, a 'friction Vseat A thereon, a detachable bit holder, means on said holder adapting the -lattergto be slippedVV manually on said seaty 'for-rigid connection to said link, and nieane'lor adgustably' securing a. bit iii said holder independently ol the detachable connections between said bit holder and said seat whereby said bit holder with the bit adj ustably secured thereto may be bodily removedfrom the'y'c-hain or connected'thereto.y i Y iiiiiireztin o. iiioiieiiii.V 

